To some degree prosody may indicate questions, although less so than in English.

His questions did not indicate that he was leaning in either direction.

She didn't understand his tone but hoped the question indicated he was willing to be reasonable.

That you asked the question indicates you do at least have some understanding of them.

But as the last question indicates, they are ultimately in the business of training managers.

Indeed, many students' questions indicated a general support for the idea of private investment accounts.

The questions indicate that there is not only interest but considerable confusion.

She certainly is not worried about the press, as her appearance each morning to answer questions indicates.

The question indicates his lack of sensitivity to the work.

That one even thinks of asking such questions indicates his stature.